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Finding the Third Proportional to 887.91 and 1,392.88

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Solution

The third proportional to 887.91 and 1,392.88 is: 2,185.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.91 : 1,392.88 = 1,392.88 : x
  2. Step 2: Convert to fraction form
    887.91/1,392.88 = 1,392.88/x
  3. Step 3: Cross multiply
    887.91x = 1,392.88 × 1,392.88
  4. Step 4: Simplify right side
    887.91x = 1,940,100.77
  5. Step 5: Solve for x
    x = 1,940,100.77/887.91
  6. Step 6: Final answer
    x = 2,185.03

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.